..they are collected by a network of fungi. 由真菌构成的网络收集这些营养物质

195. Every fish carcass she leaves behind decays,
     白灵熊剩下的鲑鱼尸体会渐渐腐化
196. releasing nutrients that soak into the soil.
     释放营养物质渗入土地
197. And there...
     在土地之下
198. ..they are collected by a network of fungi.
     由真菌构成的网络收集这些营养物质
199. The threads attach themselves to the trees' roots.
     真菌依附在树的根部
200. And nutrients from the fish, collected by the fungi,
     如此一来 鲑鱼释放的营养物质 被真菌收集
201. are then passed on to the trees.
     随后传递给了树木

来自《行星地球 第三季 第五集 Planet Earth S03E05 森林》第 198 行